Exam 27: Animals

Which of the following is the developing gut for most animal embryos?

Match each group of organisms with its lineage. Each lineage will be used only once. -gars, bowfins, sturgeons, and paddlefish

Which term refers to groups of cells that share a common structure and function?

Which lineage of echinoderms is made up of sea cucumbers, which are elongated along their oral-aboral axis?

Match each phylum with its corresponding organism. Each phylum is used only once. -sponges

Match each phylum with its corresponding organism. Each phylum is used only once. -jellyfishes, corals, and sea anemones

Supposed that you found a few animals that all have their bodies divided into three regions, called the visceral mass, head-foot, and mantle. Which phylum do they all most likely belong to?

Which lineage of Cnidarians exist only as polyps as adults, build calcium carbonate exoskeletons, and have a mutualistic relationship with photosynthetic protists?

Crocodiles are living representatives of which lineage?

Which Ecdysozoan phylum contains animals called roundworms that are so plentiful in soil and other places that they may be the most abundant animals on Earth?

Which of these structures is a covering for the gill chamber in ray-finned fishes?

Which lineage of echinoderms is made up of about 600 living species of sea lilies and feather stars?

Which Ecdysozoa phylum contains three-quarters of the known animal species?

Match each group of organisms with its lineage. Each lineage will be used only once. -birds

What is the name of the specialized stinging cells that jellyfishes have as part of their epidermis, and which they use to paralyze small prey?

Figure 27-1 -In Figure 27-1, what is the item labelled number 1?

Which of the following is a typical source of nutrients and water for developing amniote embryos?

Suppose that you are dissecting an animal that has a highly segmented body with many repeating units that are usually separated by transverse partitions called septa. Which animal are you most likely dissecting?

Which lineage of echinoderms is made up of about 950 species of sea urchins and sand dollars, which have their ossicles fused into solid tests that restrict flexibility but provide excellent protection?

Which lineage includes the tuatara as one of its only two living members?